Manufacture of wooden boxes



(No Model.) B. DE NSMOREI 2 Sheets-Sheet 1. MANUFACTURE OF WOODEN BOXES. No. 403,333. I Patented May 14-1889.

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:E wi zensmore. wzz y Q (No Model.) 2 Sheets-Sheet 2.

E. DENSMORE. MANUPAUTURE 0P WOODEN BOXES.

110,403,333. PatentedMay 14, 1889-.

UNITED STATES PATENT OEEicE,

EDI/VIN DENSMORE, OF CORONADO, CALIFORNIA.

MANUFACTURE OF WOODEN BOXES.

SPECIFICATION forming part of Letters Patent No. 403,333, dated May 14, 1889.

Application filed December 1, 1888. Serial No. 292,425. (No model.)

To aZZ whom it may concern.-

Be it known that I, EDWIN DENSMORE, of Coronado, in the county of San Diego and State of California, have invented a new and useful Improvement in the Manufacture of \Vooden Boxes; and I do hereby declare that the following is a full, clear, and exact description of the same.

In the manufacture of wooden boxes for the shipment of fruit it is customary to make one form of box out of two pieces of thin material, of a suitable width, laid across each other at right angles and with the ends turned up to form the depth of the box, the upper edges being connected by a binding-strip of tin, which is doubled or bent in U shape to embrace the inner and outer faces of the upper edges of the box, and thus hold them together in box form without the addition of other fastening devices. Heretofore such fastening devices have been placed upon boxes by hand; and it is the object ofmy invention to provide a simple form of apparatus by means of which these strips may be applied without handlabor and more quickly than at present.

The invention consists of a suitable former for receiving the body of the box and a series of clinching-faces pivoted so as to move away from and toward the face of the former, whereby the strip is securely bound to the edges of the box and prevented from displacement.

The invention further consists of a former for the box, pivoted clinching-levers, and toggles connecting the ends of the clinching-levers for giving simultaneous movement thereto, and means for operating the toggles.

Finally, the invention consists in details of construction.

In the drawings, Figure 1 represents a side elevation, partly in section, of the former and two of the clinching-levers, one position of the levers being shown in dotted lines and the other in full lines, the operating-shaft and means for giving movement thereto being also shown, Fig. 2 is a face view of the former and clinching-levers. Fig. 3 is a detail view of one of the clinching-levers. Fig. 4 represents a side elevation of the machine, with its frame-work.

At A in Fig. 4; I represent the frame-work of my machine, which is composed of uprights and cross-pieces suitably connected together by bolts, with the upper front corner formed on an angle, so as to bring the working parts in position for the operator. A metal supporting-plate is secured to the inclined portion of the supporting-frame, as shown at B, and secured to this baseplate is a former, O,

which is approximately the shape of the box to be made, and is shown in Figs. 1 and etprojecting outwardly beyond the face of the baseplate. The edges of the former are inclined as shown. The base-plate is cut away on all sides of the former, immediately bordering on 6 5 the edges thereof, and in the recesses thus formed the ends of the pointed levers project, the said levers being pivoted in the base-plate on the projecting ends of a pin which passes entirely through the front end from side to side, as shown in Figs. 1 and 2. These levers are four in number, one being pivoted in each recess in the base-plate, and each lever consists of a shank, a, and a front portion formed of a series of projections with spaces between 7 5 and having a face-plate, 1), extending across the front ends of the projections and secured thereto by means of screws, as shown. This face-plate has a concave edge which overhangs the upper edge of the former O. As

stated, the forward ends of the levers are pivoted, as shown at c, and the rear ends extend, forming long arms, which are bifurcated, and these arms are connected by means of short links (Z to a collar, 6, which is rigidly secured 8 5 to the reciprocating shaft L. As these short links d are connected at one end to the arms of the levers a and at the other end to the moving collar 6, each pair of links constitute,

with the collar, toggle-levers, and positively o operate upon the arms of the levers a in the forward and backward movement of the shaft L.

The front end of the shaft has its hearings in a central opening in the former O, and on The binding-strip, I OO part of the box to be bound, is placed upon the former with the open part of the U in the front. The two pieces composing the body of the box are placed across the front of the former, one on top of the other, with their long ends at right angles, and these ends are folded around the edge of the former. The edges of the pieces are then inserted within the folds of the binding-strip. At this time the shaft is in its forward position and the rear ends of the levers in their lowest position, and their front ends are raised. hen the strips are in proper position, the shaft L is moved to the rear, which. straightens the toggles and lifts the rear ends of the levers, thus forcing the front ends down, causing the edge of the face-plate to clutch the edge of the folded tin strip and press it firmly to the edges of the wood, and the box is thus bound.

In order to give movement to the shaft, I provide a segment, I, which provided in line with the stop F on the shaft. The spring G tends constantly to throw the shaft forward to raise the front ends of the clinching-levers, and when it is desired to force the front ends downward the cam-segment is operated by means of a friction-roller, J, or any other means, and the arm of the segment bearing against the stop F forces the shaft to the rear against the pressure of the spring, so as to operate to press the metal strip in place. The movement of the segment may be so timed that soon as the operation of pinching is completed the segment may be disconnected from its driving-roller, and the spring 1 will thus exert its force, and by throwing forward the lever release the box from the clinchinglovers.

The binding is preferably sections and united by solder.

formed in two In binding the strip in square shape the corners are preferably rounded and the folds at this point pressed together. i

I claim as my invention 1. A machine for securing bindingstrips to boxes, consisting of a former for the boxes, a pivoted lever on each side of the former, each of said levers having its front end projecting over or beyond the rear edge of the base of the former, whereby said levers are adapted to press the binding-strips securely over the front edges of the box, and means for operating said. levers, substantially as described.

2. In combination. with a former, pivoted levers (1, arranged with their forward faces in line with the base of the former, a reciprocating shaft, L, a collar carried on said shaft, and links (1 between the collar and pivoted levers, substantially as described.

In combination, a former, pivoted lovers with means for operating them, and a faceplate having a concave edge extending across the end of each lever, substantially as described.

4:- In combination, a former, pivoted levers having their front edges in line with the base of said former, one of said levers arranged at each side, a reciprocating shaft, toggle-levers between said shaft and pivoted levers, means for moving said shaft in one direction, and a spring for operating the shaft in the other direction, substantially as described.

In testimony whereof I have signed my n amc to this specification in the presence of two subscribing witnesses.

EDlVlN DENS MORE.

\Vitnesses:

G. B. IIANNMIs, W. 0. Means. 

